Dream of grandmother, church, father, mother

I am meeting my grandmother's new church. I have a weird feeling about this specific group of people but I leave her with them. My family and I go out to an event, only to hear that my grandmother will be participating in a ceremony in which she will be drowned in order to allow fresh new young individuals to enter her brain and live on. I am upset once I learn she is in a cult and my family and I rush into our cars and race to save my grandmother. I am driving erratically behind my father having a hard time seeing the road. Once we reach the church, mother is on the sidewalk crying. I instantly have a feeling of dread wash over me and I begin to cry erratically and pound on the walls of the church. I race in to see all the people and start yelling at them for allowing such a thing to happen. I start hitting things within the church and run out.